New developments in inkjet of deposits carried out under localized extraction or helium

This paper presents the first results obtained by mounting on an ink-jet print head two first systems which through injection of a helium flow, allow faster ink-jet evaporation rates and higher resolution or increased droplet velocity without modifying the droplet diameter. A third type of system features extraction specifically located at the impact of the droplets onto the substrate. This avoids contamination of the machine environment while significantly improving printing resolution. In all cases, these systems allow printing at much lower temperatures and the use of inks with high-boiling point solvents.